If you want to staple standard office paper into a booklet you will typically need a long reach stapler—standard desktop staplers are not long enough to staple the middle of a page. Specialized booklet staplers can often cost $25 or more, but if you have access to a bit of aluminum rectangular tubing, a hacksaw, and a drill you can augment a cheap $2 dollar-store stapler into having a much longer reach.

Instructables user kenyer basically disassembled the donor stapler, cut two pieces of aluminum stock to size and formed them into a U-beam, and attached the two pieces of aluminum stock to the stapler using screws at a 90-degree angle. Now the stapler doesn't need to be as long to access the spine of your booklet.